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(No Model.)

'J. O. LUDWIG & W. WAINWRIGHTR. I

VAPOR LAMP BURNER. No. 290,337. Patented Dec. 18, 1883.

N PEIERS. Photblhhogriphun Wauhinghmhfi.

UNrTE STATES PATENT- OFFICE.

JOHN C. LUDWIG AND WILLIAM VVAINWRIGHT, OF SAN FRANCISCO, GALI- FORNIA; SAID LUDWIG ASSIGNOR TO SAID WAINWRIGHT.

VAPOR-LAMP BURNER.

SPECIFICATION forming part of Letters Patent No. 290,337, dated December 18, 1883.

Application filed August 22, 1883. (No model.)

To an whom itmay concern.-

Be it known that we, J OHN O. LUDWIG and WILLIAM WAINWRIGHT, of the city and county of San Francisco, and State of California, have invented an Improvement in Vapor Lamp Burners; and we hereby declare the'following to be a full, clear, and exact description thereof.

Our invention relates to that class of lampburners which are adaptedto volatilize liquid hydrocarbons, and commonly known as vapor-burners, and it consists in a novel construction of parts and arrangement of jets or holes to produce a fan-shape flame similar to a gas-burner, as We shall hereinafter fully explain.

The object of our invention is to produce a fan-shape flame by means of a simple construction of the burner.

Referring to the accompanying drawings, Figure 1 is a vertical section of our burner and a'lamp to which it is fitted. Figs. 2, 3, 4 are perspective views of the cap 0, tip B, and tube A, the parts of the burner separated and in position to be put together. Fig. 5 is an enlarged vertical section of the burner. Fig. 6 is a modified form of the tip B.

A is a short tube, having a gallery or flange, a,with a rim,- a, about its middle. Upon top of this tube is fitted a small tip, B, having a hemispherical or curved head punctured with a line of holes, I). This tip is simply fitted to its place, and may readily be removed for the substitution of another.

0 is a cap having a slotted top, and having its base fitted down upon the flange a around the rim a, whereby a tight joint is made. The slot or opening in the top of the cap is in line directly over the line of holes I) in the tip. These parts constitute the burner.

D is the reservoir of the lamp, E its wicktube, and 6 its wick, extending up nearly to the top of the tube.

The burner is connected with the lamp by fitting its tube A down over the top of wicktube E a shortdistance, leaving a vapor space or chamber between the top of the wick and the tip B. When the burner and the top of the Wick-tube become sufficiently heated to volatilize the oil, the vapor forms in the chamber under the tip, and the flame comes forth in jets so close together as to give a single fanshaped flame, resembling that of agas-burner. A similar result, though not as perfect, could be obtained by making a slot in the tip instead of a line of holes. The cap 0, in addition to confining and directing the flame, gives a metal surface, which, being heated by the flame passing through it, communicates its heat to flange a and tube A, and thus continues the vaporizing process. WVithout it the effect would be much less; but fitting down tightly, as it does, and the flange or having no holes for ventilation, which is not herein needed, all theheat is utilized in continuing the volatilization.

The parts of the burner, being separate and readily removable from each other and from the lamp, render the device a practical and economical burner.

We are aware of the patent to W. P. Patton,

No. 254,564., March 7, 1882, in which is shown a vapor-gas-generating chamber having a slitted burner made of two pieces having a round edge, and its base portion being extended so as to form a flange,which is evidently rigidly secured and rests upon a flange secured to a screw-threaded rim, thus preventing its re moval when worn. A deflecting-cone is also shown secured and mounted upon ahot-air jacket. Further, the patent cited is entirely different from applicants construction in this, that the several parts are more numerous and complicated, and consequently more difficult to manipulate. Applicants in their device simply show a short tube having a flange and a vertical rim about the middle, and upon the tube is placed a removable tip, and on the flange and outside of the rim is placed a removable cap. Thus it will be seen that the parts most liable to become worn or useless are so placed that they may be removed with little or no trouble and new ones substituted, therefore providing a more economical and simple device than that shown in the reference.

Having thus described our invention, what we claim as new, and desire to secure by Letters Patent, is-- In a vapor-lamp burner, the tube A, fitted to the wick-tube and having the flange a and t In witness whereof we have hereunto set our upturned rim a for the reception of the slothands. ted cap 0, and theindependent removable tip JOHN C. LUDWIG. 13, having a curved head and provided with a WILLIAM .VAINXVRIGHT. 5 line of perforations, b, and adapted to fit around the upper rim of the tube A, whereby \Vitnesses: a close joint is made, substantially as and for 7 In. F. 1300mm, 1 the purposes described. S. H. NOURSE. 

